Adjusting device for perforated note-sheets.



G. B. KELLY. ADJUSTINGDEVIGE FOR PERFORATED NOTE SHEETS. APPLIOATION FILED 00w. 3;, 1910. -Patented Feb. 7, 1911.

Inventor; b v aim/[Z49 m C lZhAtty.

- UNITED STATES ragrnn'r onnion.

GEORGE B. KELLY, OF JAMAICA PLAIN, MASSACHUSETTS.

ADJUSTING DEVICE FOR rn'n-ronn'rnn NOTE-SHEETS.

Specification of Letters Extent. 7

Patented set. 7, 1911.

Application filed October 31, 1910; Serial No. 589,868;

I To all whom it may concern:

vide a new and improved device of thiskind which is simple in construction, compact, reliable and eli'ective in action and by ineansof which the note sheet can be readily and quickly adjusted so that its perforations will always'be in exact a linement with the ducts of the tracker.

In the accompanying drawings in which 'like letters of reference indicate like parts in all the figures: Figure 1 is a front elevation of part of the .music box of a piano player showing the music roller, the tracker and my improved adjusting device. Fig. 2 is a vertical transverse sectional view.

The music roll 1 is mounted in the usual manner on the bearings 2 and 3 of which the former is act d upon by a spring 1 which presses it toward the roll and the bearing 3 is provided with the conventional sprocket wheel 5 and, the chain 6 for rewinchng or to form an edge rests upon the fiat spring 16 i with anyother well known driving mechanism, as the latter forms no part of the present invention. Theshaft 7 of the hearing 3, which is mounted to turn and to slide lengthwise, is provided with a fixed collar 8 having an annular groove into which one end of the lever 9 extends, said lever being pivoted at 10 to the outer face of .the right hand end wall. 11 of the musio'box. The

lowerend of this lever 9 is pivotally connected by a link 12 with a pointer 13 pivoted at 1 1 to a short standard or block 15 on the bottom of the music box and the lower end of this lever whichis tapered or beveled secured to the bottom of the music box and the free' end part of which istbent in the form of a very obtuse V as shown at 20. The pointer extends upward and its upper end which is preferably provided with a recess as shown, is quite close to the music sheet 21 so as to adapt the upper end of this pointer to be followed by-the longitudinal guide line 17 I provided on said sheet. So that the pointer will be out of the way when inserting a perforated music sheet in the music box,the upper half or portion 18 of the pointer is hinged to. the lower; portion as at 14 so as to permit of swinging it down or out of the way when insertin or removing the sheet and of rapidly ra sing it for use. Normally the entire pointer is held in vertical position and in register with the line 17, and as the lower end'cdge of the lever rests in the angle of the V- s haped part 20 it is thus held in this vertical'positionand when moved to the right or left by hand and then released it is immediately and automatically brought by the action .of the spring 16 and its V sh-aped part 20,, back into this vertical position and register with the line 17. Incase the sheet does not run true and its line 17 does not register with the upper end'fof the- -'pointer, the o erator moves or the pointer lateral y to one end side or the other until its upper end again coincides with the line 17 and thereby moves the link 12 and the lever 9 in such a manner that these parts shift the shaft 7 of the bearing 3 by means of the collar 8, either to the right or left to such an extent that the note perforations will be again in alinement with the ducts of the tracker, and if after such adjustment the pointer is released the spring 16 as stated brings it into and kee s it in vertical position. If, on accounto careless re-rolling or expansion or contraction of the sheet the same shifts to the right or left this is immediately shown by the line 17 which will no longer coincide with the upper end of the pointer and this defect chin easily be remedied by shifting the pointer in the mannelr juststated. For example, if the sheet is run out of alinement to the right, that is to say, that the line 17 will be to the right "of the pointer, the operator moves the pointer 13 to the right so tiny it will be in alineme-nt with the line 17 whereby the lower end of the lever 9 is moved to the right and the upper end is n.0ve'd to the left, whereby the music roll is also moved to the left, thereby bringing the line 17 from the position to the right of the pointer into alinement with the pointer and so on.

Having described my invention what" I claim as new and desire to secure by Letters Patent is:

In a mechanical musical instrument, makin ifse 01" a perforated nfusio sheet, the commeans for transmitting motion front the binmion xyith n roll to .Which thotsheett is epqintqy to the bearings of the roll, ubstunatiztchd,'-o f bearings for said'tollfwhiich tiallxagget forth,

bearings are mounted to movqiri the "diiec- 'Slgned at New York city, in the county of Ion of their length, an upright pointer piv- New York, and State of New York, this 27th 15 din front of the sheettoextehd upwardly day of O ct0be1 A, D. 1910. over the sheet, a fixed spring havinga sub: GEORGE B. KELLY. mantially V-shaped part at its movable end Vitnesses: l r fangi bearingwith its recessed portion against GEORGE BELLE,

the lower end of the piv'oted pointer, and 7 JAMES PUROELL. 

